LAZYFIX

Unix Timestamp Converter

Convert between epoch timestamps and dates instantly

Current Unix time

Unix (seconds)

Unix (milliseconds)

Timestamp → Date

Date → Timestamp

Unix Time

A developer-friendly epoch and date converter

A Unix timestamp is the number of seconds (or milliseconds) since 1970-01-01 UTC. Turn the values you meet in logs, API responses, and databases into human-readable dates — and back again. Everything runs in your browser.

Auto seconds & milliseconds

Values with 13+ digits are detected as milliseconds, avoiding the classic wrong-year mistake.

UTC, local & ISO at once

See one timestamp as UTC, your local time, ISO 8601, and a relative time all together.

Two-way conversion

Convert timestamps to dates and dates to timestamps, then copy any result in one click.

FAQ

Frequently asked questions

What is a Unix timestamp?

It is the amount of time elapsed since 1970-01-01 00:00:00 UTC (the epoch), expressed in seconds or milliseconds.

How do I know if it is in seconds or milliseconds?

Ten digits is usually seconds and thirteen digits is milliseconds. This tool auto-detects by length, and you can also pick the unit manually.

Which timezone is used for the result?

It shows UTC alongside your browser’s local timezone. No configuration is required.

Is my input sent to a server?

No. All conversion happens entirely in your browser and nothing is sent anywhere.